package com.example.androidlearning2400.ui.act

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material3.*
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.example.androidlearning2400.R
import com.example.androidlearning2400.ui.theme.AndroidLearning2400Theme

class BirthdayCardActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContent {
            AndroidLearning2400Theme {
                Surface(modifier = Modifier.fillMaxSize()) {
                    GreetingImage(
                        stringResource(R.string.happy_birthday_tailyou),
                        stringResource(R.string.from_sam)
                    )
                }
            }
        }
    }
}


/**
 * 组合函数，用于构建页面
 * 生日贺卡V1.0 只能显示文本
 */
@Composable
fun GreetingText(message: String, from: String, modifier: Modifier = Modifier) {
    Column(
        verticalArrangement = Arrangement.Center, modifier = Modifier.padding(16.dp)
    ) {
        Text(
            text = message, fontSize = 90.sp, lineHeight = 100.sp, textAlign = TextAlign.Center
        )

        Text(
            text = from,
            fontSize = 24.sp,
            modifier = Modifier
                .padding(16.dp)
                .align(alignment = Alignment.End)
        )
    }
}

/**
 * 生日贺卡V2.0 可以显示文本和图片
 */
@Composable
fun GreetingImage(message: String, from: String, modifier: Modifier = Modifier) {
    val image = painterResource(R.drawable.party)
    Box(modifier) {
        Image(
            painter = image,
            contentDescription = null,
            contentScale = ContentScale.Crop,
            alpha = 0.5F
        )
        GreetingText(message, from)
    }
}

/**
 * 预览函数，仅用于预览，删除不影响程序运行
 */
@Preview(showBackground = true)
@Composable
fun BirthdayCardPreview() {
    AndroidLearning2400Theme {
        GreetingImage("Happy Birthday Tailyou!", "From Sam")
    }
}